Many  heroes ,no matter wether they are sports stars or musicians or actors,         spend many hours a day perfecting their abilities______they can keep being the best.
A.so that         B.in order that   

请问选择哪一个？有什么区别？

个人觉得so that 理解为因此
in order that 理解为为了

个人觉得so that 理解为因此
in order that 理解为为了

so that 理解为以至于
in order that 理解为为了

so that 理解为因此
in order that 理解为为了

so that 理解为因此
in order that 理解为为了

谢谢各位的解答 ！！！！

怎么就我觉得应该选in order that啊。。。

两个都可作以便讲，都引导目的状语从句，so that 也表示结果，也引导结果状语从句。

so that 理解为因此
in order that 理解为为了